Planiranje leta predstavlja kompleksan zadatak zračnih prijevoznika gdje su potrebne mnogobrojne analize kako bi let bio ekonomski isplativ, a opet pristupačan putnicima. U radu su prikazani svi aspekti koji moraju biti uzeti u obzir prilikom planiranja leta, a odnose se na odabir rute, operativne procedure, regulativna ograničenja vezana uz rad letačkog osoblja. Nadalje, definiran je i detaljno opisan postupak planiranja leta, te pripadajući formati plana leta, njihovi sadržaji i promjene. Navedeni podaci analizirani su na bazi ICAO Aneksa i odabranih ICAO dokumenata. Planovi leta podnose se Mrežnom upravitelju, te nakon odobravanja, poruke planova leta procesiraju se svim službama koje se taj plan leta tiče. Prikazane su sve vrste poruka vezane za plan leta, njihove kratice, značenje i sam način procesiranja. Također, na kraju je prikazan tok radnji koje prethode odobrenom planu leta.

Flight planning represents complex task for air carriers where many of analysis are needed, so flight can be economically payable, and at the same time available to the passengers. This disertation presents all the aspects which need to be taken into consideration while planning a flight, and they include routes, operative procedures, staff regulations. Further more, the procedure of flight planning is defined and detailed descripted, belonging flight plan formats, their contents and changes. Listed data are being analized on the basis of ICAO Annexes and miscellaneous documents. After the submitted flight plans to the Network Management Operations Centre, flight plan messages are being processed to all services concerned in a flight plan. Types of messages are being elaborated with their meanings, processing and abbreviations. Also, prior to accepted flight plan, flow of all required actions is being shown.